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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1032828Generated: October 30, 2026

Pyridine → HCID 54505295, compound

https://huagongshe.com/reaction/1032828

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Amino-2,6-di-tert-butylphenolHCID 314220—
Reactanttrans-Crotonyl chlorideHCID 643131—
SolventDichloromethaneHCID 6344—
ProductHCID 54505295HCID 5450529541.5%

Reaction Steps

Crotonyl chloride (4.7 g, 45 mmol) in 10 ml of methylene chloride was added slowly to a stirred solution of 10 g (45 mmol) of 3,5-di-tert-butyl-4-hydroxyaniline in 50 ml of methylene chloride at 0° C. Ten minutes later 3.6 g (45 mmol) of pyridine was added and, after three hours, the mixture was filtered. The filtered soid was washed with water and triturated in ether to yield 5.4 g of N-(3,5-di-tert-butyl-4-hydroxyphenyl)-2-butenamide having a melting point of 215°-218° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04959482
Source datasetuspto-grants-1990_09
ORD IDord-674cfd7ebbf2442580067773372e4c39
Source noteuspto-grants-1990_09